12019938 has 48 divisors (see below), whose sum is σ = 28773696. Its totient is φ = 3278880.

The previous prime is 12019937. The next prime is 12019957. The reversal of 12019938 is 83991021.

It is a junction number, because it is equal to n+sod(n) for n = 12019899 and 12019908.

It is not an unprimeable number, because it can be changed into a prime (12019933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21948 + ... + 22488.

It is an arithmetic number, because the mean of its divisors is an integer number (599452).

Almost surely, 2^12019938 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12019938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14386848).

12019938 is an abundant number, since it is smaller than the sum of its proper divisors (16753758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12019938 is a wasteful number, since it uses less digits than its factorization.

12019938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599 (or 576 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 12019938 is about 3466.9782231794. The cubic root of 12019938 is about 229.0695745324.

The spelling of 12019938 in words is "twelve million, nineteen thousand, nine hundred thirty-eight".